Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-40B
The AirTAC Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-40B is a genuine double-acting COMPACT cylinder (Ø100mm bore) whose extend end-position is set by an external M27×2.0 adjustment screw. You can dial the stroke anywhere from 30 to 70 mm on the machine — no shims, no part change.
- BoreØ100 mm
- Max stroke70 mm
- Adjustable range30–70 mm
- Adjuster threadM27×2.0
- Port sizePT3/8
- CushionFixed NBR bumper (both ends)
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-40B
The AirTAC SDAJ100X70-40B is a double-acting compact cylinder featuring a male-thread M26x1.5 piston rod and an external R (M27x2.0) adjuster screw. Turning this screw lets you dial the extend stop down from the 70 mm maximum to as low as 30 mm directly on the machine, eliminating the need for shims or part swaps. Because the adjuster sets the mechanical stop rather than the piston area, output force remains identical to a standard SDA of this bore, delivering 3927 N of push at 0.5 MPa.
The short riveted body saves valuable axial mounting depth where round-body or profile cylinders cannot fit. This unit lacks a piston magnet, so it cannot accept reed or electronic switches; add the -S option if sensing is required. End-of-stroke deceleration is handled by a fixed NBR bumper, which absorbs shock but is not an adjustable air cushion or a mid-stroke lock.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-40B Technical Specifications
| Model | Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-40B |
|---|---|
| Series | SDAJ compact adjustable-stroke cylinder |
| Bore size | Ø100 mm |
| Max stroke | 70 mm |
| Adjustable range | 30 – 70 mm |
| Adjuster thread (R) | M27×2.0 |
| Port size | PT3/8 |
| Acting type | Double acting |
|---|---|
| Rod end thread | M18×1.5 F / M26×1.5 male (B) |
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
The adjustment screw shortens the extend stroke by up to 40 mm. Force is unchanged from a standard SDA of the same bore. Specifications follow the official AirTAC SDAJ datasheet.
Theoretical Output Force (Ø100mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 3927 N | 3525 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 kgf | |
Force matches a standard SDA of the same bore; the adjuster only sets the stop position, not the area. Actual usable force is lower than theoretical due to friction.
Model Code: Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-40B
| SDAJ | Compact double-acting cylinder with adjustable stroke. |
|---|---|
| 100 | Bore size in mm. |
| ×70 | Maximum stroke length in mm. |
| -40 | Adjustable window (10/20/30/40/50/75/100 mm). |
| S / B | S = magnet; B = male-thread rod (both optional). |
Thread: PT standard. Related SDA-family variants: SDA (fixed stroke), SDAD (double rod), SSA/STA (single acting), SDAT (duplex), SDAW (duplex-end).
Where the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-40B Is Used
Heavy Press Fitment
Dial the extend stop from 70 mm down to 30 mm during initial tooling setup to precisely seat large bearings without re-machining the fixture.
Multi-Product Forming Line
Accommodate varying workpiece heights on a single press bed by turning the M27x2.0 adjuster, leveraging the 3927 N push force for deep forming tasks.
Vertical Lift Stations
Lift loads up to 200.2 kg safely with a 2:1 margin, fine-tuning the extend position to clear overhead conveyors before releasing the payload.
Is the Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-40B the Right Cylinder?
When sizing this actuator, compare it both ways: stepping down to an SDAJ80 yields 2513.3 N of push at 0.5 MPa, whereas this 100 mm bore provides 3927 N. With a 2:1 safety margin, the safe working load is approximately 2356 N, allowing a vertical lift of about 200.2 kg. Choose this specific model if your fixture setup requires frequent on-machine stroke tuning between 30 and 70 mm during changeovers.
Confirm the bore, 70 mm stroke, 40 mm window, PT3/8 port, and the male M26x1.5 rod thread match your mounting plate. Note that a plain SDAJ does not hold position or load when air is lost or the valve is centred; the fixed bumper only decelerates near the end of travel. For load holding without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
- ✓ Need on-machine stroke fine-tuning?
- ✓ Target position within 30–70 mm
- ✓ Force at your working pressure
- ✓ Access to reach the R adjuster
- ✓ Magnet (S) for sensors?
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Lock the M27×2.0 adjuster after setting the stroke.
- check Avoid side load on the piston rod.
- check Front/rear covers are riveted — do not dismantle.
- check Installation by qualified personnel per AirTAC docs.
Airtac SDAJ80~100 Adjustable Super Slim Cylinder SDAJ100X70-40B FAQ
This double-acting cylinder delivers 3927 N push and 3524.9 N pull at 0.5 MPa, 5497.8 N push and 4934.8 N pull at 0.7 MPa, with a theoretical maximum of 801 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa at speeds of 30-500 mm/s.
The R (M27x2.0) screw mechanically shortens the extend end position from the 70 mm maximum down to 30 mm. It does not alter the force and is not a mid-stroke lock; the cylinder cannot hold a load on air loss without an external rod lock or pilot-operated check valve.
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Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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